Jeans Instability in Classical and Modified Gravity
arXiv:1406.7104 · doi:10.1016/j.physletb.2014.11.004
Abstract
Gravitational instability in classical Jeans theory, General Relativity, and modified gravity is considered. The background density increase leads to a faster growth of perturbations in comparison with the standard theory. The transition to the Newtonian gauge in the case of coordinate dependent background metric functions is studied. For modified gravity a new high frequency stable solution is found.
References in corpus (7)
- Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
- Models of f(R) Cosmic Acceleration that Evade Solar-System Tests
- Disappearing cosmological constant in f(R) gravity
- The Large Scale Structure of f(R) Gravity
- Hydrostatic equilibrium and stellar structure in f(R)-gravity
- Matter density perturbations and effective gravitational constant in modified gravity models of dark energy
- On the evolution of density perturbations in f(R) theories of gravity